Two experiments were concerned with exploring the relative accessibility and availability of category information in retarded adolescents in comparison with CA equivalent nonretarded subjects. (Author/SB)

Data suggest an ability to use concrete-operational reasoning is not required for doing complex arithmetic, even though it may be necessary for learning these arithmetic skills. (Authors)

Results indicated that retarded Ss, relative to normal Ss of all ages, responded particularly slowly to static property statements when objects were animate, and to intrinsic-action properties when objects were inanimate. (Author/DLS)

Educable mentally retarded (EMR) and nonretarded (NR) adolescents verified superordinate and basic level descriptions of common objects. Results suggest that EMR subjects had difficulty making semantic classification decisions in general. Other results suggest that group differences in semantic processing speed were related to the deliberate…

Results are reported of an analysis of Wechsler IQ scores of 37 children (ages 3-14) with Asperger syndrome. Data revealed cognitive patterns dissimilar to those of children with other autism related disorders and similar to many typically developing and achieving individuals.. Findings are discussed in reference to identification and intervention…

Detection differences between 16 mildly mentally retarded and 14 nonretarded students aged about 16 years were studied via the presentation of high, intermediate, and low stimulus organizations of target and distractor stimuli. Implications for explaining intelligence-related differences across a range of tasks are discussed. (SLD)

Adolescents, ages 11-12 and 13-14, were tested for maturity of judgment about stability-change situations and about time perspective. (CP)